Fulcrum-block for brake-beams.



PATENTED FEB. 21, 1905.

. R. P. LAMONT. PULORUM BLOCK FOR BRAKE BEAMS.

APPLIOATION FILED JULY 25,1903.

UNITED STATES Patented February 21, 1905.

PATENT OFFICE.

ROBERT P. LAMONT, OF CHICAGO, ILL NOIS, AssIeNOR TO SIMPLEX RAILWAYAPPLIANCE COMPANY, OF CHICAGO, ILLINOIS, A COE- PORATION OF ILLINOIS.

FULCRUM-BLOCK FOR BRAKE-BEAMS.

SPECIFICATION forming part of Letters Patent No. 782,970, dated February21, 1905. Application filed July 25,1903. Serial No. 166,933.

To all whom 211'; may concern:

Be it known that 1, ROBERT P. LAMONT, a citizen of the United States,residing at Chicago, in the State of Illinois, have invented a certainnew and useful Fulcrum-Block for Brake-Beamspfwhich the following is aspecification. A

My invention relates to railway brake gear, and particularly to themeans for attaching the brake beam at its fulcrum point to the pull rodsor levers, and consists primarily in the construction of the fulcrumblock. The objects of the invention are, to provide a rigid and strongfulcrum block made in one piece; to provide a forged integral fulcrumblock which may be readily secured to and firmly fixed on the brakebeam; to provide such a fulcrum block of a form to be snugly secured toan I-beam and not relying upon rivets to take up the shear, and toreduce the cost and generally improve the construction of fulcrumblocks.

The above objects, together with other advantages whieh will hereinafterappear, I-attain in the structure illustrated in preferred form in theaccompanying drawings, where- 1n Figure 1 is a side elevation of thefulcrum block, shown partly in section, and mounted upon the I-beam;

Figures 2 and 3 are respectively an under and a top plan view of theblock;

Figures 4 and 5 are respectively a plan and an edge view of the blankfrom which the block is made.

I prefer to make the fulcrum block of wrought iron or soft steel. 7 Theblank may be cut from sheet metal in the form shown in Figures 4: and 5,and preferably the arms 7 and 10 are of about the same width, as shown.The arms 7 are bent perpendicularly to their length .so as to conform tothe flange of the I-beam 5, and the arms 10 and 11 are given a sharpbend at the edge of a base portion 9 and brought up parallel with eachother as shown in Figure 1 and given a twist of about 40 degrees asshown in Figure 2.

It will be observed that the arms 10 and 11 are laterally displaced fromposition opposite to each other about half of their width. They may betrimmed round if desired, and preferably the rivet holes 12, and theholes for the attaching rivet 8 are punched in both their respectivepairs of arms at once.

It will be observed that this construction is extremely simple and thearticle may be sheared and forged conveniently from the ordinary rolledplates found in the market and when completed is extremely rigid andstrong. The arms 7 having been put upon the I-beam it will be noticedthat the shoulders take the pulling strain against the flange, so thatthe rivet 8 is required only to hold them from spreading and fromlateral displacement on the beam. The many advantages of thisconstruction will readily occur to those familiar with the use of suchdevices.

Having thus described my invention and its use, what 1 claim, and desireto secure by Letters Patent, is the following:

1. A single piece fulcrum block formed of plate metal and forged withtwo pairs of arms oppositely bent respectively to embrace the beam andto form the fulcrum jaws, said arms being Of the same thickness witheach other and with the fulcrum seat.

2. A fulcrum block formed of forged plate metal comprising two attachingarms for the beam and two separate arms for the fulcrum jaws bentoppositely, substantially as described. v

3. A single piece fulcrum block comprising two arms to embrace the brakebeam and two fulcrum jaws, the latter jaws being laterally each other,and two arms extending approximately at right angles to the line of thefirst two but laterally displaced from direct alinement to each other.

5 6. A brake fulcrum block blank comprising" two oppositely extendingarms in alinement, and two oppositely extending arms having their baseslaterally displaced from the center of the blank and their outer endsrespectively IO opposite to each other on a line perpendicular to thecenter of the blank substantially as and for the purpose described.

In testimony whereof I have hereunder signed my name in the presence ofthe two subscribed Witnesses.

ROBERT P. LAMONT.

Witnesses:

PAUL CARPENTER, CHAs. H. EBERT.

